Mercurial > projects > dwt-linux
annotate dwt/graphics/Device.d @ 33:27324bbbac70
changed to regenerated BCD bindings
| author | Frank Benoit <benoit@tionex.de> |
|---|---|
| date | Thu, 10 Jan 2008 02:18:07 +0100 |
| parents | 10acbb123580 |
| children | 8f049b136add |
| rev | line source |
|---|---|
| 18 | 1 /******************************************************************************* |
| 2 * Copyright (c) 2000, 2007 IBM Corporation and others. | |
| 3 * All rights reserved. This program and the accompanying materials | |
| 4 * are made available under the terms of the Eclipse Public License v1.0 | |
| 5 * which accompanies this distribution, and is available at | |
| 6 * http://www.eclipse.org/legal/epl-v10.html | |
| 7 * | |
| 8 * Contributors: | |
| 9 * IBM Corporation - initial API and implementation | |
| 10 *******************************************************************************/ | |
| 11 module dwt.graphics.Device; | |
| 12 | |
| 13 import dwt.graphics.Color; | |
| 19 | 14 import dwt.graphics.Font; |
| 15 import dwt.graphics.Drawable; | |
| 16 import dwt.graphics.DeviceData; | |
| 17 import dwt.graphics.Rectangle; | |
| 18 import dwt.graphics.FontData; | |
| 19 import dwt.graphics.Font; | |
| 20 import dwt.graphics.GCData; | |
| 21 import dwt.dwthelper.Runnable; | |
| 22 import dwt.SWT; | |
| 23 import dwt.SWTError; | |
| 24 import dwt.internal.Compatibility; | |
| 25 import dwt.internal.gtk.OS; | |
| 26 | |
| 27 import tango.core.Exception; | |
| 28 import tango.stdc.stringz; | |
| 29 import tango.io.Stdout; | |
| 30 | |
| 31 /+ | |
| 18 | 32 class Device{ |
| 33 static Device getDevice(){ | |
| 34 return null; | |
| 35 } | |
| 36 void new_Object (Object object) { | |
| 37 } | |
| 38 void dispose_Object (Object object) { | |
| 39 } | |
| 40 bool tracking; | |
| 41 bool useXRender; | |
| 42 bool isDisposed(){ | |
| 43 return false; | |
| 44 } | |
| 45 int[] colorRefCount; | |
| 46 GdkColor*[] gdkColors; | |
| 47 public Color getSystemColor (int id) { | |
| 48 return null; | |
| 49 } | |
| 19 | 50 Font systemFont; |
| 51 Color COLOR_BLACK, COLOR_DARK_RED, COLOR_DARK_GREEN, COLOR_DARK_YELLOW, COLOR_DARK_BLUE; | |
| 52 Color COLOR_DARK_MAGENTA, COLOR_DARK_CYAN, COLOR_GRAY, COLOR_DARK_GRAY, COLOR_RED; | |
| 53 Color COLOR_GREEN, COLOR_YELLOW, COLOR_BLUE, COLOR_MAGENTA, COLOR_CYAN, COLOR_WHITE; | |
| 18 | 54 } |
| 55 | |
| 19 | 56 +/ |
| 18 | 57 |
| 19 | 58 |
| 18 | 59 |
| 60 /** | |
| 61 * This class is the abstract superclass of all device objects, | |
| 62 * such as the Display device and the Printer device. Devices | |
| 63 * can have a graphics context (GC) created for them, and they | |
| 64 * can be drawn on by sending messages to the associated GC. | |
| 65 */ | |
| 19 | 66 public abstract class Device : Drawable { |
| 18 | 67 /** |
| 68 * the handle to the X Display | |
| 69 * (Warning: This field is platform dependent) | |
| 70 * <p> | |
| 71 * <b>IMPORTANT:</b> This field is <em>not</em> part of the SWT | |
| 72 * public API. It is marked protected only so that it can be shared | |
| 73 * within the packages provided by SWT. It is not available on all | |
| 74 * platforms and should never be accessed from application code. | |
| 75 * </p> | |
| 76 */ | |
| 28 | 77 protected void* xDisplay; |
| 19 | 78 GtkWidget* shellHandle; |
| 18 | 79 |
| 80 /* Debugging */ | |
| 19 | 81 public static bool DEBUG; |
| 82 bool debugging; | |
| 83 bool tracking; | |
| 84 TracedException [] errors; | |
| 18 | 85 Object [] objects; |
| 86 | |
| 87 /* Colormap and reference count */ | |
| 19 | 88 GdkColor *[] gdkColors; |
| 18 | 89 int [] colorRefCount; |
| 90 | |
| 91 /* Disposed flag */ | |
| 19 | 92 bool disposed; |
| 18 | 93 |
| 94 /* Warning and Error Handlers */ | |
| 19 | 95 //int /*long*/ logProcFld; |
| 96 //GLogFunc logCallback; | |
| 18 | 97 //NOT DONE - get list of valid names |
| 19 | 98 char[] [] log_domains = ["GLib-GObject"[], "GLib", "GObject", "Pango", "ATK", "GdkPixbuf", "Gdk", "Gtk", "GnomeVFS"]; |
| 99 int [] handler_ids;// = new int [log_domains.length]; | |
| 18 | 100 int warningLevel; |
| 101 | |
| 102 /* X Warning and Error Handlers */ | |
| 19 | 103 static extern(C) int function(void *) mXIOErrorHandler; |
| 104 static extern(C) int function(void *, XErrorEvent *) mXErrorHandler; | |
| 105 //static int mXErrorCallback, mXIOErrorCallback; | |
| 106 | |
| 18 | 107 static int /*long*/ XErrorProc, XIOErrorProc, XNullErrorProc, XNullIOErrorProc; |
| 19 | 108 static Device[] Devices; |
| 18 | 109 |
| 110 /* | |
| 111 * The following colors are listed in the Windows | |
| 112 * Programmer's Reference as the colors in the default | |
| 113 * palette. | |
| 114 */ | |
| 115 Color COLOR_BLACK, COLOR_DARK_RED, COLOR_DARK_GREEN, COLOR_DARK_YELLOW, COLOR_DARK_BLUE; | |
| 116 Color COLOR_DARK_MAGENTA, COLOR_DARK_CYAN, COLOR_GRAY, COLOR_DARK_GRAY, COLOR_RED; | |
| 117 Color COLOR_GREEN, COLOR_YELLOW, COLOR_BLUE, COLOR_MAGENTA, COLOR_CYAN, COLOR_WHITE; | |
| 118 | |
| 119 /* System Font */ | |
| 120 Font systemFont; | |
| 121 | |
| 19 | 122 PangoTabArray* emptyTab; |
| 18 | 123 |
| 19 | 124 bool useXRender; |
| 18 | 125 |
| 19 | 126 static bool CAIRO_LOADED; |
| 18 | 127 |
| 19 | 128 static const Object CREATE_LOCK; |
| 18 | 129 |
| 130 /* | |
| 131 * TEMPORARY CODE. When a graphics object is | |
| 132 * created and the device parameter is null, | |
| 133 * the current Display is used. This presents | |
| 134 * a problem because SWT graphics does not | |
| 135 * reference classes in SWT widgets. The correct | |
| 136 * fix is to remove this feature. Unfortunately, | |
| 137 * too many application programs rely on this | |
| 138 * feature. | |
| 139 * | |
| 140 * This code will be removed in the future. | |
| 141 */ | |
| 142 protected static Device CurrentDevice; | |
| 143 protected static Runnable DeviceFinder; | |
| 144 | |
| 19 | 145 static this(){ |
| 146 CREATE_LOCK = new Object(); | |
| 147 Devices = new Device[4]; | |
| 148 } | |
| 18 | 149 /* |
| 150 * TEMPORARY CODE. | |
| 151 */ | |
| 152 static synchronized Device getDevice () { | |
| 19 | 153 if (DeviceFinder !is null) DeviceFinder.run(); |
| 18 | 154 Device device = CurrentDevice; |
| 155 CurrentDevice = null; | |
| 156 return device; | |
| 157 } | |
| 158 | |
| 159 /** | |
| 160 * Constructs a new instance of this class. | |
| 161 * <p> | |
| 162 * You must dispose the device when it is no longer required. | |
| 163 * </p> | |
| 164 * | |
| 165 * @see #create | |
| 166 * @see #init | |
| 167 * | |
| 168 * @since 3.1 | |
| 169 */ | |
| 19 | 170 public this() { |
| 18 | 171 this(null); |
| 172 } | |
| 173 | |
| 174 /** | |
| 175 * Constructs a new instance of this class. | |
| 176 * <p> | |
| 177 * You must dispose the device when it is no longer required. | |
| 178 * </p> | |
| 179 * | |
| 180 * @param data the DeviceData which describes the receiver | |
| 181 * | |
| 182 * @see #create | |
| 183 * @see #init | |
| 184 * @see DeviceData | |
| 185 */ | |
| 19 | 186 public this(DeviceData data) { |
| 187 handler_ids = new int [log_domains.length]; | |
| 188 debugging = DEBUG; | |
| 189 tracking = DEBUG; | |
| 190 | |
| 18 | 191 synchronized (CREATE_LOCK) { |
| 192 if (data != null) { | |
| 19 | 193 debugging = data.debugging; |
| 18 | 194 tracking = data.tracking; |
| 195 } | |
| 196 if (tracking) { | |
| 19 | 197 errors = new TracedException [128]; |
| 18 | 198 objects = new Object [128]; |
| 199 } | |
| 200 create (data); | |
| 201 init (); | |
| 202 register (this); | |
| 203 | |
| 204 /* Initialize the system font slot */ | |
| 205 systemFont = getSystemFont (); | |
| 206 } | |
| 207 } | |
| 208 | |
| 209 void checkCairo() { | |
| 210 } | |
| 211 | |
| 212 /** | |
| 213 * Throws an <code>SWTException</code> if the receiver can not | |
| 214 * be accessed by the caller. This may include both checks on | |
| 215 * the state of the receiver and more generally on the entire | |
| 216 * execution context. This method <em>should</em> be called by | |
| 217 * device implementors to enforce the standard SWT invariants. | |
| 218 * <p> | |
| 219 * Currently, it is an error to invoke any method (other than | |
| 220 * <code>isDisposed()</code> and <code>dispose()</code>) on a | |
| 221 * device that has had its <code>dispose()</code> method called. | |
| 222 * </p><p> | |
| 223 * In future releases of SWT, there may be more or fewer error | |
| 224 * checks and exceptions may be thrown for different reasons. | |
| 225 * <p> | |
| 226 * | |
| 227 * @exception SWTException <ul> | |
| 228 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> | |
| 229 * </ul> | |
| 230 */ | |
| 231 protected void checkDevice () { | |
| 232 if (disposed) SWT.error(SWT.ERROR_DEVICE_DISPOSED); | |
| 233 } | |
| 234 | |
| 235 /** | |
| 236 * Creates the device in the operating system. If the device | |
| 237 * does not have a handle, this method may do nothing depending | |
| 238 * on the device. | |
| 239 * <p> | |
| 240 * This method is called before <code>init</code>. | |
| 241 * </p><p> | |
| 242 * Subclasses are supposed to reimplement this method and not | |
| 243 * call the <code>super</code> implementation. | |
| 244 * </p> | |
| 245 * | |
| 246 * @param data the DeviceData which describes the receiver | |
| 247 * | |
| 248 * @see #init | |
| 249 */ | |
| 250 protected void create (DeviceData data) { | |
| 251 } | |
| 252 | |
| 253 /** | |
| 254 * Disposes of the operating system resources associated with | |
| 255 * the receiver. After this method has been invoked, the receiver | |
| 256 * will answer <code>true</code> when sent the message | |
| 257 * <code>isDisposed()</code>. | |
| 258 * | |
| 259 * @see #release | |
| 260 * @see #destroy | |
| 261 * @see #checkDevice | |
| 262 */ | |
| 263 public void dispose () { | |
| 264 if (isDisposed()) return; | |
| 265 checkDevice (); | |
| 266 release (); | |
| 267 destroy (); | |
| 268 deregister (this); | |
| 19 | 269 xDisplay = null; |
| 18 | 270 disposed = true; |
| 271 if (tracking) { | |
| 272 objects = null; | |
| 273 errors = null; | |
| 274 } | |
| 275 } | |
| 276 | |
| 277 void dispose_Object (Object object) { | |
| 278 for (int i=0; i<objects.length; i++) { | |
| 19 | 279 if (objects [i] is object) { |
| 18 | 280 objects [i] = null; |
| 281 errors [i] = null; | |
| 282 return; | |
| 283 } | |
| 284 } | |
| 285 } | |
| 286 | |
| 28 | 287 static synchronized Device findDevice (void* xDisplay) { |
| 18 | 288 for (int i=0; i<Devices.length; i++) { |
| 289 Device device = Devices [i]; | |
| 19 | 290 if (device !is null && device.xDisplay is xDisplay) { |
| 18 | 291 return device; |
| 292 } | |
| 293 } | |
| 294 return null; | |
| 295 } | |
| 296 | |
| 297 synchronized static void deregister (Device device) { | |
| 298 for (int i=0; i<Devices.length; i++) { | |
| 19 | 299 if (device is Devices [i]) Devices [i] = null; |
| 18 | 300 } |
| 301 } | |
| 302 | |
| 303 /** | |
| 304 * Destroys the device in the operating system and releases | |
| 305 * the device's handle. If the device does not have a handle, | |
| 306 * this method may do nothing depending on the device. | |
| 307 * <p> | |
| 308 * This method is called after <code>release</code>. | |
| 309 * </p><p> | |
| 310 * Subclasses are supposed to reimplement this method and not | |
| 311 * call the <code>super</code> implementation. | |
| 312 * </p> | |
| 313 * | |
| 314 * @see #dispose | |
| 315 * @see #release | |
| 316 */ | |
| 317 protected void destroy () { | |
| 318 } | |
| 319 | |
| 320 /** | |
| 321 * Returns a rectangle describing the receiver's size and location. | |
| 322 * | |
| 323 * @return the bounding rectangle | |
| 324 * | |
| 325 * @exception SWTException <ul> | |
| 326 * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> | |
| 327 * </ul> | |
| 328 */ | |
| 329 public Rectangle getBounds () { | |
| 330 checkDevice (); | |
| 331 return new Rectangle(0, 0, 0, 0); | |
| 332 } | |
| 333 | |
| 334 /** | |
| 335 * Returns a <code>DeviceData</code> based on the receiver. | |
| 336 * Modifications made to this <code>DeviceData</code> will not | |
| 337 * affect the receiver. | |
| 338 * | |
| 339 * @return a <code>DeviceData</code> containing the device's data and attributes | |
| 340 * | |
| 341 * @exception SWTException <ul> | |
| 342 * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> | |
| 343 * </ul> | |
| 344 * | |
| 345 * @see DeviceData | |
| 346 */ | |
| 347 public DeviceData getDeviceData () { | |
| 348 checkDevice(); | |
| 349 DeviceData data = new DeviceData (); | |
| 19 | 350 data.debugging = debugging; |
| 18 | 351 data.tracking = tracking; |
| 352 int count = 0, length = 0; | |
| 353 if (tracking) length = objects.length; | |
| 354 for (int i=0; i<length; i++) { | |
| 355 if (objects [i] != null) count++; | |
| 356 } | |
| 357 int index = 0; | |
| 358 data.objects = new Object [count]; | |
| 19 | 359 data.errors = new TracedException [count]; |
| 18 | 360 for (int i=0; i<length; i++) { |
| 361 if (objects [i] != null) { | |
| 362 data.objects [index] = objects [i]; | |
| 363 data.errors [index] = errors [i]; | |
| 364 index++; | |
| 365 } | |
| 366 } | |
| 367 return data; | |
| 368 } | |
| 369 | |
| 370 /** | |
| 371 * Returns a rectangle which describes the area of the | |
| 372 * receiver which is capable of displaying data. | |
| 373 * | |
| 374 * @return the client area | |
| 375 * | |
| 376 * @exception SWTException <ul> | |
| 377 * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> | |
| 378 * </ul> | |
| 379 * | |
| 380 * @see #getBounds | |
| 381 */ | |
| 382 public Rectangle getClientArea () { | |
| 383 checkDevice (); | |
| 384 return getBounds (); | |
| 385 } | |
| 386 | |
| 387 /** | |
| 388 * Returns the bit depth of the screen, which is the number of | |
| 389 * bits it takes to represent the number of unique colors that | |
| 390 * the screen is currently capable of displaying. This number | |
| 391 * will typically be one of 1, 8, 15, 16, 24 or 32. | |
| 392 * | |
| 393 * @return the depth of the screen | |
| 394 * | |
| 395 * @exception SWTException <ul> | |
| 396 * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> | |
| 397 * </ul> | |
| 398 */ | |
| 399 public int getDepth () { | |
| 400 checkDevice (); | |
| 401 return 0; | |
| 402 } | |
| 403 | |
| 404 /** | |
| 405 * Returns a point whose x coordinate is the horizontal | |
| 406 * dots per inch of the display, and whose y coordinate | |
| 407 * is the vertical dots per inch of the display. | |
| 408 * | |
| 409 * @return the horizontal and vertical DPI | |
| 410 * | |
| 411 * @exception SWTException <ul> | |
| 412 * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> | |
| 413 * </ul> | |
| 414 */ | |
| 415 public Point getDPI () { | |
| 416 checkDevice (); | |
| 417 return new Point (72, 72); | |
| 418 } | |
| 419 | |
| 420 /** | |
| 421 * Returns <code>FontData</code> objects which describe | |
| 422 * the fonts that match the given arguments. If the | |
| 423 * <code>faceName</code> is null, all fonts will be returned. | |
| 424 * | |
| 425 * @param faceName the name of the font to look for, or null | |
| 426 * @param scalable if true only scalable fonts are returned, otherwise only non-scalable fonts are returned. | |
| 427 * @return the matching font data | |
| 428 * | |
| 429 * @exception SWTException <ul> | |
| 430 * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> | |
| 431 * </ul> | |
| 432 */ | |
| 19 | 433 public FontData[] getFontList (char[] faceName, bool scalable) { |
| 18 | 434 checkDevice (); |
| 435 if (!scalable) return new FontData[0]; | |
| 19 | 436 PangoFontFamily* family; |
| 437 PangoFontFace * face; | |
| 438 PangoFontFamily** families; | |
| 439 int n_families; | |
| 440 PangoFontFace ** faces; | |
| 441 int n_faces; | |
| 442 auto context = OS.gdk_pango_context_get(); | |
| 443 OS.pango_context_list_families(context, &families, &n_families); | |
| 18 | 444 int nFds = 0; |
| 19 | 445 FontData[] fds = new FontData[faceName != null ? 4 : n_families]; |
| 446 for (int i=0; i<n_families; i++) { | |
| 447 family = families[i]; | |
| 448 bool match = true; | |
| 18 | 449 if (faceName != null) { |
| 19 | 450 auto familyName = OS.pango_font_family_get_name(family); |
| 451 match = Compatibility.equalsIgnoreCase(faceName, fromUtf8z( familyName )); | |
| 18 | 452 } |
| 453 if (match) { | |
| 19 | 454 OS.pango_font_family_list_faces(family, &faces, &n_faces); |
| 455 for (int j=0; j<n_faces; j++) { | |
| 456 face = faces[j]; | |
| 457 auto fontDesc = OS.pango_font_face_describe(face); | |
| 18 | 458 Font font = Font.gtk_new(this, fontDesc); |
| 459 FontData data = font.getFontData()[0]; | |
| 460 if (nFds == fds.length) { | |
|
25
fc2b263b8a3f
Merged back the System.arraycopy and use a System class
Frank Benoit <benoit@tionex.de>
parents:
19
diff
changeset
|
461 FontData[] newFds = new FontData[fds.length + n_families]; |
|
fc2b263b8a3f
Merged back the System.arraycopy and use a System class
Frank Benoit <benoit@tionex.de>
parents:
19
diff
changeset
|
462 System.arraycopy(fds, 0, newFds, 0, nFds); |
|
fc2b263b8a3f
Merged back the System.arraycopy and use a System class
Frank Benoit <benoit@tionex.de>
parents:
19
diff
changeset
|
463 fds = newFds; |
| 18 | 464 } |
| 465 fds[nFds++] = data; | |
| 466 OS.pango_font_description_free(fontDesc); | |
| 467 } | |
| 468 OS.g_free(faces[0]); | |
| 19 | 469 if (faceName !is null) break; |
| 18 | 470 } |
| 471 } | |
| 19 | 472 OS.g_free(families); |
| 18 | 473 OS.g_object_unref(context); |
| 474 if (nFds == fds.length) return fds; | |
|
25
fc2b263b8a3f
Merged back the System.arraycopy and use a System class
Frank Benoit <benoit@tionex.de>
parents:
19
diff
changeset
|
475 FontData[] result = new FontData[nFds]; |
|
fc2b263b8a3f
Merged back the System.arraycopy and use a System class
Frank Benoit <benoit@tionex.de>
parents:
19
diff
changeset
|
476 System.arraycopy(fds, 0, result, 0, nFds); |
|
fc2b263b8a3f
Merged back the System.arraycopy and use a System class
Frank Benoit <benoit@tionex.de>
parents:
19
diff
changeset
|
477 return result; |
| 18 | 478 } |
| 479 | |
| 480 /** | |
| 481 * Returns the matching standard color for the given | |
| 482 * constant, which should be one of the color constants | |
| 483 * specified in class <code>SWT</code>. Any value other | |
| 484 * than one of the SWT color constants which is passed | |
| 485 * in will result in the color black. This color should | |
| 486 * not be freed because it was allocated by the system, | |
| 487 * not the application. | |
| 488 * | |
| 489 * @param id the color constant | |
| 490 * @return the matching color | |
| 491 * | |
| 492 * @exception SWTException <ul> | |
| 493 * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> | |
| 494 * </ul> | |
| 495 * | |
| 496 * @see SWT | |
| 497 */ | |
| 498 public Color getSystemColor (int id) { | |
| 499 checkDevice (); | |
| 500 switch (id) { | |
| 501 case SWT.COLOR_BLACK: return COLOR_BLACK; | |
| 502 case SWT.COLOR_DARK_RED: return COLOR_DARK_RED; | |
| 503 case SWT.COLOR_DARK_GREEN: return COLOR_DARK_GREEN; | |
| 504 case SWT.COLOR_DARK_YELLOW: return COLOR_DARK_YELLOW; | |
| 505 case SWT.COLOR_DARK_BLUE: return COLOR_DARK_BLUE; | |
| 506 case SWT.COLOR_DARK_MAGENTA: return COLOR_DARK_MAGENTA; | |
| 507 case SWT.COLOR_DARK_CYAN: return COLOR_DARK_CYAN; | |
| 508 case SWT.COLOR_GRAY: return COLOR_GRAY; | |
| 509 case SWT.COLOR_DARK_GRAY: return COLOR_DARK_GRAY; | |
| 510 case SWT.COLOR_RED: return COLOR_RED; | |
| 511 case SWT.COLOR_GREEN: return COLOR_GREEN; | |
| 512 case SWT.COLOR_YELLOW: return COLOR_YELLOW; | |
| 513 case SWT.COLOR_BLUE: return COLOR_BLUE; | |
| 514 case SWT.COLOR_MAGENTA: return COLOR_MAGENTA; | |
| 515 case SWT.COLOR_CYAN: return COLOR_CYAN; | |
| 516 case SWT.COLOR_WHITE: return COLOR_WHITE; | |
| 517 } | |
| 518 return COLOR_BLACK; | |
| 519 } | |
| 520 | |
| 521 /** | |
| 522 * Returns a reasonable font for applications to use. | |
| 523 * On some platforms, this will match the "default font" | |
| 524 * or "system font" if such can be found. This font | |
| 525 * should not be freed because it was allocated by the | |
| 526 * system, not the application. | |
| 527 * <p> | |
| 528 * Typically, applications which want the default look | |
| 529 * should simply not set the font on the widgets they | |
| 530 * create. Widgets are always created with the correct | |
| 531 * default font for the class of user-interface component | |
| 532 * they represent. | |
| 533 * </p> | |
| 534 * | |
| 535 * @return a font | |
| 536 * | |
| 537 * @exception SWTException <ul> | |
| 538 * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> | |
| 539 * </ul> | |
| 540 */ | |
| 541 public Font getSystemFont () { | |
| 542 checkDevice (); | |
| 543 return systemFont; | |
| 544 } | |
| 545 | |
| 546 /** | |
| 547 * Returns <code>true</code> if the underlying window system prints out | |
| 548 * warning messages on the console, and <code>setWarnings</code> | |
| 549 * had previously been called with <code>true</code>. | |
| 550 * | |
| 551 * @return <code>true</code>if warnings are being handled, and <code>false</code> otherwise | |
| 552 * | |
| 553 * @exception SWTException <ul> | |
| 554 * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> | |
| 555 * </ul> | |
| 556 */ | |
| 19 | 557 public bool getWarnings () { |
| 18 | 558 checkDevice (); |
| 559 return warningLevel == 0; | |
| 560 } | |
| 561 | |
| 562 /** | |
| 563 * Initializes any internal resources needed by the | |
| 564 * device. | |
| 565 * <p> | |
| 566 * This method is called after <code>create</code>. | |
| 567 * </p><p> | |
| 568 * If subclasses reimplement this method, they must | |
| 569 * call the <code>super</code> implementation. | |
| 570 * </p> | |
| 571 * | |
| 572 * @see #create | |
| 573 */ | |
| 574 protected void init () { | |
| 19 | 575 if (xDisplay !is null) { |
| 576 int event_basep, error_basep; | |
| 577 if (OS.XRenderQueryExtension (xDisplay, &event_basep, &error_basep)) { | |
| 578 int major_version, minor_version; | |
| 579 OS.XRenderQueryVersion (xDisplay, &major_version, &minor_version); | |
| 580 useXRender = major_version > 0 || (major_version == 0 && minor_version >= 8); | |
| 18 | 581 } |
| 582 } | |
| 583 | |
| 19 | 584 if (debugging) { |
| 585 if (xDisplay !is null) { | |
| 18 | 586 /* Create the warning and error callbacks */ |
| 19 | 587 synchronized (CREATE_LOCK) { |
| 18 | 588 int index = 0; |
| 589 while (index < Devices.length) { | |
| 590 if (Devices [index] != null) break; | |
| 591 index++; | |
| 592 } | |
| 593 if (index == Devices.length) { | |
| 19 | 594 OS.XSetErrorHandler ( & XErrorProcFunc ); |
| 595 OS.XSetIOErrorHandler ( & XIOErrorProcFunc ); | |
| 18 | 596 } |
| 597 } | |
| 598 OS.XSynchronize (xDisplay, true); | |
| 599 } | |
| 600 } | |
| 601 | |
| 602 /* Create GTK warnings and error callbacks */ | |
| 19 | 603 if (xDisplay !is null) { |
| 18 | 604 /* Set GTK warning and error handlers */ |
| 19 | 605 if (debugging) { |
| 18 | 606 int flags = OS.G_LOG_LEVEL_MASK | OS.G_LOG_FLAG_FATAL | OS.G_LOG_FLAG_RECURSION; |
| 607 for (int i=0; i<log_domains.length; i++) { | |
|
33
27324bbbac70
changed to regenerated BCD bindings
Frank Benoit <benoit@tionex.de>
parents:
28
diff
changeset
|
608 handler_ids [i] = OS.g_log_set_handler (toStringz(log_domains [i]), flags, & logFunction, cast(void*)this); |
| 18 | 609 } |
| 610 } | |
| 611 } | |
| 612 | |
| 19 | 613 /* Create the standard colors */ |
| 18 | 614 COLOR_BLACK = new Color (this, 0,0,0); |
| 615 COLOR_DARK_RED = new Color (this, 0x80,0,0); | |
| 616 COLOR_DARK_GREEN = new Color (this, 0,0x80,0); | |
| 617 COLOR_DARK_YELLOW = new Color (this, 0x80,0x80,0); | |
| 618 COLOR_DARK_BLUE = new Color (this, 0,0,0x80); | |
| 619 COLOR_DARK_MAGENTA = new Color (this, 0x80,0,0x80); | |
| 620 COLOR_DARK_CYAN = new Color (this, 0,0x80,0x80); | |
| 621 COLOR_GRAY = new Color (this, 0xC0,0xC0,0xC0); | |
| 622 COLOR_DARK_GRAY = new Color (this, 0x80,0x80,0x80); | |
| 623 COLOR_RED = new Color (this, 0xFF,0,0); | |
| 624 COLOR_GREEN = new Color (this, 0,0xFF,0); | |
| 625 COLOR_YELLOW = new Color (this, 0xFF,0xFF,0); | |
| 626 COLOR_BLUE = new Color (this, 0,0,0xFF); | |
| 627 COLOR_MAGENTA = new Color (this, 0xFF,0,0xFF); | |
| 628 COLOR_CYAN = new Color (this, 0,0xFF,0xFF); | |
| 629 COLOR_WHITE = new Color (this, 0xFF,0xFF,0xFF); | |
| 630 | |
| 631 emptyTab = OS.pango_tab_array_new(1, false); | |
| 19 | 632 if (emptyTab is null) SWT.error(SWT.ERROR_NO_HANDLES); |
|
33
27324bbbac70
changed to regenerated BCD bindings
Frank Benoit <benoit@tionex.de>
parents:
28
diff
changeset
|
633 OS.pango_tab_array_set_tab(emptyTab, 0, OS.PANGO_TAB_LEFT, 1); |
| 18 | 634 |
|
33
27324bbbac70
changed to regenerated BCD bindings
Frank Benoit <benoit@tionex.de>
parents:
28
diff
changeset
|
635 shellHandle = OS.gtk_window_new(OS.GTK_WINDOW_TOPLEVEL); |
| 19 | 636 if (shellHandle is null) SWT.error(SWT.ERROR_NO_HANDLES); |
| 18 | 637 OS.gtk_widget_realize(shellHandle); |
| 638 } | |
| 639 | |
| 640 /** | |
| 641 * Invokes platform specific functionality to allocate a new GC handle. | |
| 642 * <p> | |
| 643 * <b>IMPORTANT:</b> This method is <em>not</em> part of the public | |
| 644 * API for <code>Device</code>. It is marked public only so that it | |
| 645 * can be shared within the packages provided by SWT. It is not | |
| 646 * available on all platforms, and should never be called from | |
| 647 * application code. | |
| 648 * </p> | |
| 649 * | |
| 650 * @param data the platform specific GC data | |
| 651 * @return the platform specific GC handle | |
| 652 */ | |
| 19 | 653 public abstract GdkGC* internal_new_GC (GCData data); |
| 18 | 654 |
| 655 /** | |
| 656 * Invokes platform specific functionality to dispose a GC handle. | |
| 657 * <p> | |
| 658 * <b>IMPORTANT:</b> This method is <em>not</em> part of the public | |
| 659 * API for <code>Device</code>. It is marked public only so that it | |
| 660 * can be shared within the packages provided by SWT. It is not | |
| 661 * available on all platforms, and should never be called from | |
| 662 * application code. | |
| 663 * </p> | |
| 664 * | |
| 665 * @param hDC the platform specific GC handle | |
| 666 * @param data the platform specific GC data | |
| 667 */ | |
| 19 | 668 public abstract void internal_dispose_GC (GdkGC* handle, GCData data); |
| 18 | 669 |
| 670 /** | |
| 671 * Returns <code>true</code> if the device has been disposed, | |
| 672 * and <code>false</code> otherwise. | |
| 673 * <p> | |
| 674 * This method gets the dispose state for the device. | |
| 675 * When a device has been disposed, it is an error to | |
| 676 * invoke any other method using the device. | |
| 677 * | |
| 678 * @return <code>true</code> when the device is disposed and <code>false</code> otherwise | |
| 679 */ | |
| 19 | 680 public bool isDisposed () { |
| 18 | 681 return disposed; |
| 682 } | |
| 683 | |
| 684 /** | |
| 685 * Loads the font specified by a file. The font will be | |
| 686 * present in the list of fonts available to the application. | |
| 687 * | |
| 688 * @param path the font file path | |
| 689 * @return whether the font was successfully loaded | |
| 690 * | |
| 691 * @exception SWTException <ul> | |
| 692 * <li>ERROR_NULL_ARGUMENT - if path is null</li> | |
| 693 * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> | |
| 694 * </ul> | |
| 695 * | |
| 696 * @see Font | |
| 697 * | |
| 698 * @since 3.3 | |
| 699 */ | |
| 19 | 700 public bool loadFont (char[] path) { |
| 18 | 701 checkDevice(); |
| 702 if (path == null) SWT.error (SWT.ERROR_NULL_ARGUMENT); | |
| 19 | 703 return cast(bool) OS.FcConfigAppFontAddFile (null, toStringz(path)); |
| 18 | 704 } |
| 705 | |
|
33
27324bbbac70
changed to regenerated BCD bindings
Frank Benoit <benoit@tionex.de>
parents:
28
diff
changeset
|
706 private static extern(C) void logFunction (char* log_domain, int log_level, char* message, void* user_data) { |
| 19 | 707 Device dev = cast(Device)user_data; |
| 708 if (dev.warningLevel == 0) { | |
| 709 if (DEBUG || dev.debugging) { | |
| 710 foreach( msg; new TracedException ("") ){ | |
| 711 Stderr.formatln( "trc {}", msg ); | |
| 712 } | |
| 18 | 713 } |
| 19 | 714 OS.g_log_default_handler (log_domain, log_level, message, user_data); |
| 18 | 715 } |
| 716 return 0; | |
| 717 } | |
| 718 | |
| 719 void new_Object (Object object) { | |
| 720 for (int i=0; i<objects.length; i++) { | |
| 19 | 721 if (objects [i] is null) { |
| 18 | 722 objects [i] = object; |
| 19 | 723 errors [i] = new TracedException (""); |
| 18 | 724 return; |
| 725 } | |
| 726 } | |
|
25
fc2b263b8a3f
Merged back the System.arraycopy and use a System class
Frank Benoit <benoit@tionex.de>
parents:
19
diff
changeset
|
727 Object [] newObjects = new Object [objects.length + 128]; |
|
fc2b263b8a3f
Merged back the System.arraycopy and use a System class
Frank Benoit <benoit@tionex.de>
parents:
19
diff
changeset
|
728 System.arraycopy (objects, 0, newObjects, 0, objects.length); |
|
fc2b263b8a3f
Merged back the System.arraycopy and use a System class
Frank Benoit <benoit@tionex.de>
parents:
19
diff
changeset
|
729 newObjects [objects.length] = object; |
|
fc2b263b8a3f
Merged back the System.arraycopy and use a System class
Frank Benoit <benoit@tionex.de>
parents:
19
diff
changeset
|
730 objects = newObjects; |
|
fc2b263b8a3f
Merged back the System.arraycopy and use a System class
Frank Benoit <benoit@tionex.de>
parents:
19
diff
changeset
|
731 TracedException [] newErrors = new TracedException [errors.length + 128]; |
|
fc2b263b8a3f
Merged back the System.arraycopy and use a System class
Frank Benoit <benoit@tionex.de>
parents:
19
diff
changeset
|
732 System.arraycopy (errors, 0, newErrors, 0, errors.length); |
|
fc2b263b8a3f
Merged back the System.arraycopy and use a System class
Frank Benoit <benoit@tionex.de>
parents:
19
diff
changeset
|
733 newErrors [errors.length] = new TracedException (""); |
|
fc2b263b8a3f
Merged back the System.arraycopy and use a System class
Frank Benoit <benoit@tionex.de>
parents:
19
diff
changeset
|
734 errors = newErrors; |
| 18 | 735 } |
| 736 | |
| 737 static synchronized void register (Device device) { | |
| 738 for (int i=0; i<Devices.length; i++) { | |
| 19 | 739 if (Devices [i] is null) { |
| 18 | 740 Devices [i] = device; |
| 741 return; | |
| 742 } | |
| 743 } | |
|
25
fc2b263b8a3f
Merged back the System.arraycopy and use a System class
Frank Benoit <benoit@tionex.de>
parents:
19
diff
changeset
|
744 Device [] newDevices = new Device [Devices.length + 4]; |
|
fc2b263b8a3f
Merged back the System.arraycopy and use a System class
Frank Benoit <benoit@tionex.de>
parents:
19
diff
changeset
|
745 System.arraycopy (Devices, 0, newDevices, 0, Devices.length); |
|
fc2b263b8a3f
Merged back the System.arraycopy and use a System class
Frank Benoit <benoit@tionex.de>
parents:
19
diff
changeset
|
746 newDevices [Devices.length] = device; |
|
fc2b263b8a3f
Merged back the System.arraycopy and use a System class
Frank Benoit <benoit@tionex.de>
parents:
19
diff
changeset
|
747 Devices = newDevices; |
| 18 | 748 } |
| 749 | |
| 750 /** | |
| 751 * Releases any internal resources back to the operating | |
| 752 * system and clears all fields except the device handle. | |
| 753 * <p> | |
| 754 * When a device is destroyed, resources that were acquired | |
| 755 * on behalf of the programmer need to be returned to the | |
| 756 * operating system. For example, if the device allocated a | |
| 757 * font to be used as the system font, this font would be | |
| 758 * freed in <code>release</code>. Also,to assist the garbage | |
| 759 * collector and minimize the amount of memory that is not | |
| 760 * reclaimed when the programmer keeps a reference to a | |
| 761 * disposed device, all fields except the handle are zero'd. | |
| 762 * The handle is needed by <code>destroy</code>. | |
| 763 * </p> | |
| 764 * This method is called before <code>destroy</code>. | |
| 765 * </p><p> | |
| 766 * If subclasses reimplement this method, they must | |
| 767 * call the <code>super</code> implementation. | |
| 768 * </p> | |
| 769 * | |
| 770 * @see #dispose | |
| 771 * @see #destroy | |
| 772 */ | |
| 773 protected void release () { | |
| 19 | 774 if (shellHandle !is null) OS.gtk_widget_destroy(shellHandle); |
| 775 shellHandle = null; | |
| 18 | 776 |
| 19 | 777 if (gdkColors !is null) { |
| 778 auto colormap = OS.gdk_colormap_get_system(); | |
| 18 | 779 for (int i = 0; i < gdkColors.length; i++) { |
| 19 | 780 GdkColor* color = gdkColors [i]; |
| 781 if (color !is null) { | |
| 18 | 782 while (colorRefCount [i] > 0) { |
| 783 OS.gdk_colormap_free_colors(colormap, color, 1); | |
| 784 --colorRefCount [i]; | |
| 785 } | |
| 786 } | |
| 787 } | |
| 788 } | |
| 789 gdkColors = null; | |
| 790 colorRefCount = null; | |
| 791 COLOR_BLACK = COLOR_DARK_RED = COLOR_DARK_GREEN = COLOR_DARK_YELLOW = COLOR_DARK_BLUE = | |
| 792 COLOR_DARK_MAGENTA = COLOR_DARK_CYAN = COLOR_GRAY = COLOR_DARK_GRAY = COLOR_RED = | |
| 793 COLOR_GREEN = COLOR_YELLOW = COLOR_BLUE = COLOR_MAGENTA = COLOR_CYAN = COLOR_WHITE = null; | |
| 794 | |
| 19 | 795 if (emptyTab !is null ) OS.pango_tab_array_free(emptyTab); |
| 796 emptyTab = null; | |
| 18 | 797 |
| 798 /* Free the GTK error and warning handler */ | |
| 19 | 799 if (xDisplay !is null) { |
| 18 | 800 for (int i=0; i<handler_ids.length; i++) { |
| 19 | 801 if (handler_ids [i] !is 0 ) { |
| 802 OS.g_log_remove_handler (toStringz(log_domains [i]), handler_ids [i]); | |
| 18 | 803 handler_ids [i] = 0; |
| 804 } | |
| 805 } | |
| 19 | 806 //logCallback.dispose (); logCallback = null; |
| 18 | 807 handler_ids = null; log_domains = null; |
| 19 | 808 //logProcFld = 0; |
| 18 | 809 } |
| 810 } | |
| 811 | |
| 812 /** | |
| 813 * If the underlying window system supports printing warning messages | |
| 814 * to the console, setting warnings to <code>false</code> prevents these | |
| 815 * messages from being printed. If the argument is <code>true</code> then | |
| 816 * message printing is not blocked. | |
| 817 * | |
| 818 * @param warnings <code>true</code>if warnings should be printed, and <code>false</code> otherwise | |
| 819 * | |
| 820 * @exception SWTException <ul> | |
| 821 * <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed</li> | |
| 822 * </ul> | |
| 823 */ | |
| 19 | 824 public void setWarnings (bool warnings) { |
| 18 | 825 checkDevice (); |
| 826 if (warnings) { | |
| 827 if (--warningLevel == 0) { | |
| 19 | 828 if (debugging) return; |
| 829 for (int i=0; i<handler_ids.length; i++) { | |
| 830 if (handler_ids [i] != 0) { | |
| 831 OS.g_log_remove_handler (toStringz(log_domains [i]), handler_ids [i]); | |
| 832 handler_ids [i] = 0; | |
| 833 } | |
| 834 } | |
| 18 | 835 } |
| 836 } else { | |
| 837 if (warningLevel++ == 0) { | |
| 19 | 838 if (debugging) return; |
| 839 int flags = OS.G_LOG_LEVEL_MASK | OS.G_LOG_FLAG_FATAL | OS.G_LOG_FLAG_RECURSION; | |
| 840 for (int i=0; i<log_domains.length; i++) { | |
|
33
27324bbbac70
changed to regenerated BCD bindings
Frank Benoit <benoit@tionex.de>
parents:
28
diff
changeset
|
841 handler_ids [i] = OS.g_log_set_handler (toStringz(log_domains [i]), flags, & logFunction, cast(void*)this ); |
| 19 | 842 } |
| 18 | 843 } |
| 844 } | |
| 845 } | |
| 846 | |
| 28 | 847 private static extern(C) int /*long*/ XErrorProcFunc (void* xDisplay, dwt.internal.gtk.OS.XErrorEvent* xErrorEvent) { |
| 18 | 848 Device device = findDevice (xDisplay); |
| 849 if (device != null) { | |
| 850 if (device.warningLevel == 0) { | |
| 19 | 851 if (DEBUG || device.debugging) { |
| 852 foreach( msg; new TracedException ("") ){ | |
| 853 Stderr.formatln( "trc {}", msg ); | |
| 854 } | |
| 18 | 855 } |
| 19 | 856 //PORTING_FIXME ?? |
| 857 //OS.Call (XErrorProc, xDisplay, xErrorEvent); | |
| 18 | 858 } |
| 859 } else { | |
| 19 | 860 if (DEBUG) (new SWTError ()).printStackTrace (); |
| 861 //PORTING_FIXME ?? | |
| 862 //OS.Call (XErrorProc, xDisplay, xErrorEvent); | |
| 18 | 863 } |
| 864 return 0; | |
| 865 } | |
| 866 | |
| 28 | 867 private static extern(C) int /*long*/ XIOErrorProcFunc (void* xDisplay) { |
| 18 | 868 Device device = findDevice (xDisplay); |
| 869 if (device != null) { | |
| 19 | 870 if (DEBUG || device.debugging) { |
| 871 foreach( msg; new TracedException ("") ){ | |
| 872 Stderr.formatln( "trc {}", msg ); | |
| 873 } | |
| 18 | 874 } |
| 875 } else { | |
| 19 | 876 if (DEBUG) { |
| 877 foreach( msg; new TracedException ("") ){ | |
| 878 Stderr.formatln( "trc {}", msg ); | |
| 879 } | |
| 880 } | |
| 18 | 881 } |
| 19 | 882 //PORTING_FIXME ?? |
| 883 //OS.Call (XIOErrorProc, xDisplay, 0); | |
| 18 | 884 return 0; |
| 885 } | |
| 886 | |
| 887 } |